DTC B2285: Steering Lock Position Signal Circuit Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Clear the DTCs. Refer to DTC CHECK / CLEAR .
5. Check if DTC B2287 is output.

   OK

   DTC B2287 is not output.

NG → See step   7 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) 

OK: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - NO. 1 JUNCTION) 

OK: Go to next step 

1. Reconnect the F8 connector to the power management control ECU.
   Fig 1: F37 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F37-4 (SLP1) - Body ground	Steering locked	10 kΩ or higher
   F37-4 (SLP1) - Body ground	Steering unlocked	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Steering Lock Actuator Assembly (Steering Lock ECU))

NG → See step   8 

OK: Go to next step 

1. Disconnect the F8 connector from the power management control ECU.
   Fig 2: F8 & F37 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the F37 connector from the steering lock actuator assembly (steering lock ECU).
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F8-3 (SLP) - F37-4 (SLP1)	Always	Below 1 Ω
   F8-3 (SLP) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1

   Front view of wire harness connector (to Power Management Control ECU)

   *2

   Front view of wire harness connector (to Steering Lock Actuator Assembly (Steering Lock ECU))

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU) 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Power Source Control / Data List.
5. Read the Data List according to the display on the Techstream.
   POWER SOURCE CONTROL
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Specified Condition
   Steering Unlock Switch	Steering lock condition/ON or OFF	ON: Steering unlocked OFF Steering locked	-

   OK

   ON (steering lock is unlocked) and OFF (steering lock is locked) appear on the screen.

NG → See step   9 

OK → See step   10